Right... I began to realise that I'd need 24v in either case shortly after posing.

The 36v regulated supply was bought for this project, but was abandoned in favour of a home built heavy duty power supply, so would be dedicated to supplying the Mesa board - but isn't 36v too high anyway, I think the manual says 32v?

I think one of those little DIN rail supplies would do nicely and so much less hassle than rectifying the 24VAC. Is 1A enough to do everything? Thanks for the links.